Bad customer service

Good Day I bought 2 A30 Samsung handsets on the 03/05/19 (vodacom phones)at Makro , the phones were fine for some time it looked fine until the phones gave us problems they are jamming and malfunctioning i returned one to the store for the to check it and then they took it for repairs then it came back when i opened the phone it was worse than before then i phoned makro head office the guy i spoke to he said i must return it to the store to get a new one unfortunately i did not get a phone they took it for repairs i told them i no longer want the phone because it repaired twice and it is still a new phone so the are taking me from pillar to post i am tire i am not happy with vodacom(bad customer service) the is a lot i am just summarizing.